Great breakdown by Steve and Glenn. I'm like Tom King - nearly 40 years using the tablesaw daily, as professional with all the pressures to make a living, not hobby, and have over 100 stitches in both hands to prove it (but no lost digits - Thank God). Ditto to all thats been said, except the insistance on guards - can't do many operations with guards in place - first thing removed from my unisaw. I will add these two insights: one - hope you get bit by some machine someday, and I hope its not bad, but I do hope it happens, because nothing will slow you down to hyper focus on safe cutting more than after you first get cut from a machine. You literally learn a hyper awareness of the space between the blade and your fingers, and can likely detect any blade location even with your eyes closed.
Second - don't cut styrofoam, just don't. Use a razor knife. Even during the rush of shipping. Principle is true for any unique material other than wood. Lexan plastic is also super dangerous - sticks to rear of blade, grabs easily, unpredictable. Learn alternative ways to cut too, like push in pc half way through, pull out, then flip end over end and cut til it meets in middle - no need for push stick then, and quite safe.
john.blazy_dichrolam_llc
Delta Unisaw, Rabbit QX-80-1290 80W Laser, 5 x 12 ft laminating ovens, Powermax 22/44, Accuspray guns, Covington diamond lap and the usual assortment of cool toys / tools.